Air quality in St. John's today
Canada · Updated Friday 01:30 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Fair European AQI
Fine for almost everyone.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 3 µg/m³ | Good |
| PM10 | 4 µg/m³ | Good |
| NO₂ | 2 µg/m³ | Good |
| O₃ | 67 µg/m³ | Fair |
The pollutant that matters most in St. John's right now is O₃.
Forecast: next 24 hours
The air in St. John's should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 08:30.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 02:30 | 24 | Fair | 3 |
| Fri 05:30 | 23 | Fair | 2 |
| Fri 08:30 | 19 | Good | 3 |
| Fri 11:30 | 19 | Good | 3 |
| Fri 14:30 | 20 | Good | 5 |
| Fri 17:30 | 28 | Fair | 9 |
| Fri 20:30 | 31 | Fair | 11 |
| Fri 23:30 | 24 | Fair | 7 |
The last 30 days
Over the last 30 days the average daily AQI in St. John's was 24, with 0 day(s) rated poor or worse. The cleanest day was 17 Sept, the most polluted 11 Sept.
Questions and answers
- Is the air in St. John's good today?
- Right now the European Air Quality Index in St. John's is 24, which is fair. Fine for almost everyone.
- What pollutes the air in St. John's?
- At the moment O₃ contributes most to the air quality index in St. John's. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in St. John's be cleanest?
- The air in St. John's should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 08:30.
- Where does this data come from?
- Wheezair shows model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), served by Open-Meteo: about 11 km resolution in Europe and 40 km elsewhere, updated daily. They are not station measurements, so a busy street can be worse than its city's value.